Pesp Summer Car Auto Seat Office Chair Lumbar Support Cushion Pad Wood Beads Massage Lumbar Pillow Widely used on car seat, office chair, and home chair, wood Beads massage your lumbar. Massage your back while driving, sitting long time in front of the computer. Eliminate lumbar discomfort and back pain. Perfectly fits the physiological curvature of the lumbar The curve angle can be adjusted to fit perfectly to your lumbar, and then help correct your spinal column in good shape.